Play random idle animations for inactive hedgehogs

[GoogleCodeExporter]

I suggest to let the hedgehogs randomly play special idle animations from time 
to time when it is not their turn and they are idle. Why? Just for fun! :D

Thankfully, Hedgewars already has a few usable hedgehog animations, some of 
them are currently only used for chat commands, see here:
http://www.hedgewars.org/node/5364

I think that “/juggle” and “/wave” would work best as idle animations. 
The other animations not so well.

Maybe a couple more idle animations could be added later, such as a hedgehog 
reading a newspaper, playing yo-yo, yawning, and other things.

Original issue reported on code.google.com by almikes@aol.com on 24 Mar 2015 at 1:27

[GoogleCodeExporter]

As noted in chat, players w/ hats that are "total makeovers" might prefer this 
not happening.  although it could work with hats that are really hats.  I 
believe sheepluva suggested a whitelist.

Original comment by kyberneticist@gmail.com on 3 Apr 2015 at 8:02